Question

-2|x+3|+4|x+3|=15-5|x+3|-1 heelppp

Answer 1

puteam si fara sa notez modulul dar mi s a parut mai usor

Answer 2

Explicație pas cu pas:

-2|x+3|+4|x+3|=15-5|x+3|-1

|x+3|=t

-2t+4t=15-5t-1

2t+5t=14

t=2

|x+3|=2

1.x∈(-∞,-3)

-x-3=2

x=-5.

2.x∈[-3,+∞)

x+3=2

x=-1.

Raspuns:S={-5;-1}.

Bafta!